Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual grade tem um tempo de aposentadoria de +3.9 segundos em menos de 96 voltas?
 ###Tabelas: CREATE TABLE medal_leaders (medal_leaders_id AUTO_INCREMENT PRIMARY KEY, Nation VARCHAR, Sport VARCHAR, Gold INT, Silver INT, Bronze INT, Total INT) CREATE TABLE race (race_id AUTO_INCREMENT PRIMARY KEY, Driver VARCHAR, Team VARCHAR, Laps INT, Time/Retired VARCHAR, Grid INT, Points INT) CREATE TABLE intercounty_connector_bus_routes (intercounty_connector_bus_routes_id AUTO_INCREMENT PRIMARY KEY, Route VARCHAR, Terminus VARCHAR, Operated by VARCHAR, Corridors served VARCHAR, Total trips (AM/PM) VARCHAR, Operating since VARCHAR) CREATE TABLE detroit_red_wings_4_chicago_black_hawks_2 (detroit_red_wings_4_chicago_black_hawks_2_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visitor VARCHAR, Score VARCHAR, Home VARCHAR, Record VARCHAR) CREATE TABLE all-time_ranking_in_the_championship_playoff_since_the_introduction_of_the_playoff_system_in_2009 (all-time_ranking_in_the_championship_playoff_since_the_introduction_of_the_playoff_system_in_2009_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Club VARCHAR, Seasons INT, Played INT, Drew INT, Lost INT, Points INT, Avg. Points INT, Goals for INT, Goals against INT, Goal diff INT)  
SELECT AVG Grid FROM race WHERE Time/Retired = +3.9 secs AND Laps < 96